Daikin ALTHERMA HT EKBUHAA6 V3 - Part 5 - Function

ESIE09-08A
Function 53
Part 5 - Function
1. Operation Mode ................................................................................................54
2. Basic Control.....................................................................................................55
2.1 Normal Operation...............................................................................................55
2.2 Compressor PI Control .......................................................................................56
2.3 Electronic Expansion Valve PI Control R-410A circuit.....................................57
2.4 Electronic Expansion Valve PI Control R-134a circuit......................................57
3. Special Control..................................................................................................58
3.1 Startup Control....................................................................................................58
3.2 Defrosting Operation ..........................................................................................59
3.3 Pump-down Residual Operation.........................................................................60
3.4 Stopping Operation.............................................................................................61
4. Protection Control.............................................................................................62
4.1 High Pressure Protection Control.......................................................................62
4.2 Low Pressure Protection Control........................................................................64
4.3 Discharge Pipe Protection Control .....................................................................66
4.4 Inverter Protection Control.................................................................................67
5. Other Control ....................................................................................................69
5.1 Heating Operation Prohibition............................................................................69
5.2 Inverter Fan Control (Switch Box Fan)..............................................................69
5.3 Crankcase Heater................................................................................................69
6. Outline of Control (Indoor Unit).......................................................................70
6.1 Freeze Prevention ...............................................................................................70
6.2 Simultaneous demand of space heating and domestic water heating.................71